Forged-steel draft-rigging attachment



New. 25, 1924. '1,516,553

B. K. THll-:s

APPARATUS FOR `WINDING YARN WARPS UPON DYEING BEAMS Filid Jun 20. 1924 Patented New, 25, 1924.,

BERNHARD KARL THL'ES, OF COESFELD, WESTPI-IALIA, GERMANY.

APPARATUS FOR 'W'NDING YARN WAR-PS UPON DYEING BEAVIS.

Application led. .Tune 20, 1924. Serial No. 721,351.

r owing to the increasing weight of the yarn already wound on the dyeing beam, the inner layers of the yarn are subjected to a differenttension from that of the outer layers. Attempts have been made to remove this difficulty by varying the tension of the yarn, but this expedient is wrong in principle, because the yarn is thereby subjected to a strain due to its having to share the frictional driving strain. Y

It has also been proposed to adopt the eX- pedient employed in paper-winding machines, namely to arrange that the effective leverage of the warp beam shall diminish as the diameter of the yarn on the Said beam increases. This arrangement necessitates however considerable lateral width of the apparatus, and in this case also all the layers of the yarn are subjected to friction.

The above stated problem is solved in an essentially different manner by the present invention according to which the share of the yarn in the effort of winding is eliminated by the frictional drive. at the commencement of the winding operation. For this purpose in the improved apparatus removable friction discs are located on the friction drum; upon these friction discs there are arranged to run, flanges located on the ends of the dyeing beam upon which the yarn is to be wound. The engagement is such as to leave a determined normal intermediate distance between the periphery of the dyeing beam and the periphery of the friction drum. By this means the initial layers of the yarn on the dyeing beam can be wound, without direct loading by the dyeing beam, more loosely than the later layers which are subjected to direct loading by the. dyeing beam.

An embodiment of this invention is illustrated by way of example in the accompanying drawings in which Figure l is a side elevation partly in section of the improved apparatus, and

Figure 2 is a vertical cross section on the 60 line 2 2 of Figure l, showing the apparatus after a few layers of yarn have been wound upon the dyeing beam.

In the illustrated example: l is the dyeing beam; it has end flanges 6 and'7. 2 is the 65 friction drum fitted with end discs 4 and 5, located beyond the ends of said drum. The end flanges 6 and 7 are adapted to run on the end discs 4 and 5, so that according to the size of the said flanges and said discs,

a determined normal intermediate distance 3 is left between the periphery of the dyeing beam and the periphery of the friction drum.

The discs 4 and 5 are secured on the shaft 75 l0 of the friction drum by means of nuts 8 and 9, so that by removing said nuts said discs can be removed and be replaced by other discs'whereby the distance 3 can be varied as desired. So long as the layers beso that the said layers will be capable of being subsequently dyed uniformly with the said later layers. When a coarse yarn is to be wound, the distance 3 may be made smaller than for fine yarns. By changing the discs 4 and 5, the improved apparatus can be 95 adapted to the requirements of any case.

What I claim is: l. lIn an apparatus for winding yarn warps upon a dyeing beam by means of a friction drum drive, the combination with the dyeing beam, and a friction drum, of driven friction flanges located on the ends of a dyeing beam, and driving friction-discs removably located on said friction drum,

for engaging and driving said friction flanges.

2. In an apparatus for winding yarn warps upon a dyeing beam b-y means of a friction drum drive, the combination with the friction drum, of driving friction discs located removably on the driving friction drum, upon which said discs7 driven 'frietion flanges located at the ends of said dyeing beamp are adapted to run and be driven by said driving discs, Wherebyadetermined intermediate distance is maintained between the periphery of the dyeing beam and the periphery of said friction drum for the purpose of enabling the initial layers of the yarn Warp to be Wound upon the dyeing beam Without being loaded directly by the Weight of the dyeing beam, and thereby be Wound more loosely than the later Wound layers which are loaded directly by the Weight of the dyeing` beam.

ln testimony whereof I have signed my name to this speciiication.

BERNHARD KARL THIES, 

